Car-truck side frame.



No. 839,572. PATENTBD DEC. 25, 1906. G. G. FLOYD. CAR TRUCK SIDE FRAME.

APPLICATION FILED s EPT.z4.19oe.

TED sfrnrns PATENT GFBGE.

GEORGE G; FLOYD, or' GRANITE, iLLINOis, ssiGNoR To AMERICAIN"- sTaRL FOUNDRIns, or NEW YORK, N. Y., A CORPORATION or NEW ,JERSEY CAR-TRUCK slDE FRAME.

, Specifcation'of Letters Patent.

Patented Dec. 25, 1906.

Application tiled September V24, 1906. Serial No. 335.925.

To all whomV it may concern:

B e it known that l, GEORGE G. FLOYD, a

citizen of the United States, residinor at Granite, in the -county of Madison and State of Illinois, have invented certain new and useful Improvements in Car-Truck Side Frames, of which the following is -a specification.

My invention relates to carl-trucks; and its object is the provision of means in connection with the truck Aside frames Awhich will readily permit removal of the truck-bolster.

To accom lish'this object, l use side framesy each of W 'ch has a recess extending downwardly i'romthe top surface to provide a pocket for the end of the bolster and the bolster-springs. Over thisjrecess and at` tached to the side frame is a detachable bridge or cap,which forms a guide for the bolster to prevent substantial lon itudinal movement thereof. The recess an the top and bottom edges of the side frames are pref-v erably provided with marginal flanges, that.

at the bottom ofthe recess being sufficiently widened to forma seat for the springs. These flanges afford convenient means for'the at-I improved sideframe. -F 2l is a topplan view of the structure show-n in Fig.`1. Fig.. 3 is a section on line 3 3 of Fig. l, the springs being omitted and their positions indicated by dotted lines. Fig. 4 is an enlarged-central longitudinal `section of the bolster and the side frame. Fig. 5 is a plan'view of a part Of'a side frame showing a modied form 'of bridge or capfitted over therecess, and

Fig. 6 is a section-Ona reduced scale on line 66ofFig.5. 'I .y y A The' side frame illustrated in Fi s. 1 2, 3, and 4 comprises a vertical'bellied p ate or web 10, havinva central recess 11 extending downwardly from its upper surface to receive the end of bolster 12 andbolster-springs 13,

and also havin the ordinary trian rular apertures 14 for t e reduction of weig t. EX- tendin ialong the Vtop marginA of plate 1() down t e side of recess 11 and across its bottom and projecting in' opposite directions from the plate or web l() is a marginal flange 15, which is broadened at the bottom of the recess 11 to form a seat 1.6 for the springs. Plate or web 10 is also provided along its bo`ting from both sides thereof. tits end the tured to accommodate the column-bolts, and between seat 16 and flange 17 are other encommodatc the boltsor pins 20, which maintain the pedestal tie-bar 21 in position." if desired, the top surface of seat 16 may have bossesor'projections 22,. adapted to fit with- Vin the lower ends of the springs upon which the bolster rests..

VPreferably the verticalvside -iianges of recess' 11 and the top flange 15 are-at -right l angles, whereby the pair of angle-transoms 23 may be'placed in losition with one flange or leg resting upon t e top surface of flange 15, while theother leger flange rests against the inner surface of the recesss side flange. ln

of the side frame on opposite sides of' the recess and at the same time form a guide or guides for the end of the bolster, I use on each side frame abridee or cap 24, bowed upwardly somewhat. Brit ge`- 24 has flat terminal z`ontal flanges o'f transoms 23, and rivets 26 secure together these plate portions, the

flanges of the transoms, and flange 15 of the side frame. In order to strengthen this bridge,`-I provid'efit with a longitudinal upstanding rib 27, and depending from the bridgeinto the recess and against the two vertical flanges of transoms'23 are guidingofthe recess by one or more rivets 29, which also `pass through the depending legs of the transorns.

VThe bolster near each end has spaced guiding projections 30, which engage the opposite edges of legs 28, the two parts coperatinO' to 'guide the-vertical movement of the bolster and at the' same time prevent any substantial longitudinal movement thereof.

In order to 4remove the bolster `from the tom edge with a marginal flange 17 project-1 frame has enlargements ori bosses 18, aperlargements 19 with holes therethrough to ac-v order toftie or join together the top portions plate portions 2 5, adapted to rest on the hori legs 28, which are secured to the side flanges ssy side frame, it is merely necessary to take out the springsthereby permitting the bolster to descend sutliciently so that its projections 30 are Wholly beneath tlieguiding-legs 28, and When in such position the bolster can be removed laterally of the side frame, so as to separate the two parts. lf desired, hoW- ever, the bolster may be removed from the side frame by detaching. bridge or cap 27, first cutting the rivets and lifting the cap away from the side frame and bolster. The

` guiding parts thus being separated the bolster can be removed transversely of the side frame. e

' In Figs. 5 and 6 l have shown a modification of the bridge, which has its central portio'n 31 bowed outwardly, as shown in F ig. 5, and equipped at its outer margin with a depending ilange 32. The bolster tits within this cap and is prevented from having substantial longitudinal movement by the lflanges 3;- ot the two caps on opposite sides' of the truck, the flanges' being of su'ilicient depth to maintain. the bolster in position even though the springs beneath it are considerably compressed. In this type of truck it is necessary to have the guides 30 on the sides of the bolster.

To remove thebolster from a truck having side trames and caps, as shown in Figs. 5 and 6, it is necessary to detach the cap, When the bolster can be readily drawn out Without dithculty. d

In both forms of side Jraine the bridge and frame are made of cast metal-for the sake of strength and economy oi manufacture, but my invention is not necessarily limited to cast-metal side frames.

.To those skilled in the art various modifications of the structures shown and described will be apparent, and it should be understood that such modifications fall Within the scope of my invention, Whichis not limited to the details of construction set forth. Several minor modifications may be made in a side frame of this character Without departure from the substance of my invention. f

i. The combination of a car-truck side frame having a recess in its top surface adapted to accommodate the end of a bolster, a bridge-piece extending over said recess and fastened said side frame, and a bolster, said bolster and bridge cooperating and forming the sole means for that side of the truck to prevent substantial longitudinal more nient oi said bolster relative to said side frame, substantially as described. v

2. The combination ot' a car-truck side frame having a recess in its top surface adaptedto accommodate the end of a bolster, a

i i I l bridge-piece extending over said recess and gitudinal movement of said bolster relative to said side frame, said guide or guides and bridge-piece constituting the sole means for that side of the. truck to prevent lengthwise.

shitting of said bolster, substantially as described.

3. The combination of a ear-truck side frame having a recess in its top surface adapted to accommodate the end of a bolster, a bridge-piece extending over said recess and detachably fastened to said side frame, and a bolster having lateral guides cooperating with said bridge-piece to prevent substantial longitudinal movement of said bolster rela tive to said side frame, said guide or, guides and bridge-piece constituting the sole means for that side of the truck to prevent lengthwise shifting of said bolster, substantially as described.

4. The combination of a car-truck side frame having a recess in its top surface adapted to accommodate the end of a bolster, a bridge-piece extending over said recess and detachably fastened to said side frame, said bridge-piece having a portion extending into said recess, a bolster having-one or more lugs or ribs adapted to coact with the part of said bridge-piece in said recess to prevent longitudinal movement of said bolster, said lugs or ribs and bridge-piece forming the sole means for that side ol' the car-truck to pre-v vent lengthwise shifting of said bolster, subV stantially as described.

5. The combination oi a car-truck side frame having a recess in its topsurlace, and one or more angle-transoms fastened to said side frame, each transom having one flange resting on the top surface of the side frame and the other flange 'extending downwardly into -said recess', substantially as described.

6. The combination of a car-truck side frame having a recess in its top surface adapted to accommodate the end of a bolster, a

pair of angle-transoms fastened to said side.

frame, each transom having one ilange resting on the top surface of said side frame and the other flange depending into said recess, and a bridge-.piece extending over said reand fastened to the two portionsl of said s'le frame on opposite sides of said recess, substantially as described.

As evidence that l claim the foregoing vas my invention I `have signed the same, this 20th day of September, 1906, in the'prescnce of two witnesses.

' GEORGE G. FLOYD. W'itnesses:

FREDERICK C. GOODWIN,

WALTER M. FULLER.

ioo

IIS 

